LLM coding is quite well-suited to projects that apply the Unix philosophy. Highly modular systems that can be broken into small components that do one thing well.
I've found modularity to be helpful in general whether there's an LLM or not.
Easier to test, lower cognitive overload, and it's faster to onboard someone when they only need to understand a small part at a time.
I almost wonder if these LLMs can be used to assess the barrier for onboarding. If it gets confused and generating shitty suggestions, I wonder if that could that be a good informal smoke alarm for trouble areas the next junior will run into.